Datsun / Nissan 200 SX SE V6 ECU A18 691 G54 / A18691G54 ENGINE S12-VG30E 23710-32F60 Up for sale is a Working, in excellent condition 1988 Datsun / Nissan 200 SX V6 Engine fuel / engine control module. This is the rare one! Under 10,000 200SX's were imported to the US, finding a good working ECU for them is starting to be a difficult task. We have one here!Part number - See the top or large photo. , This ECU came out of a 88 SE with the V6, manual transmission & Federal emission, But my list shows this fits some 87-88 models. As always your best bet is to match the part number to the one on your original ECU. These units have been NLA for quite a while now, and are not at all easy to find, at any price much less as fair as this. These are usually fairly reliable, however can easily be damaged by a leaky windscreen, wiring faults or voltage spikes (caused by a faulty alternator). A faulty ECU can cause problems ranging from a bad idle control circuit to random no injector pulse signal (causes no start or random cut outs) & many others.